nononono. Not just a few words, but thousands. (I haven't counted them).
I put up a little program that will interpolate and extrapolate any two images that you give it. For a check you can extrapolate the 224 image from the 128 and 192 images, Then you can extrapolate to the 208 image.
However, the granularity seems to be 16Mb: probably there are 32 bit integers where i'm just modifying the top byte. The funny thing is that a FEW locations have a different scaling factor. My program doesn't care, and just interpolates or extrapolates. rpi_cmp_startfiles …128… …192…. |wc -l will give you the number of different bytes…. [update: 5313 ]
I've googled for my own program. Here it is: http://prive.bitwizard.nl/rpi_cmp_startfiles.c